package com.etc;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;
import java.io.IOException;

public class WordCountReduce extends Reducer < Text,IntWritable,Text,IntWritable>{

    @Override
    protected void reduce(Text key,Iterable<IntWritable>values,Context context)throws IOException,InterruptedException{
        //计数
        int count = 0;

        for (IntWritable value :values){
            count = count + value.get();
        }
        context.write(key,new IntWritable(count));
    }
}
